mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-01 22:15:51 +00:00
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
|
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package monitor
|
||
|
|
|
||
|
|
import (
|
||
|
|
"bufio"
|
||
|
|
"fmt"
|
||
|
|
"net"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
type devdConn struct {
|
||
|
|
conn net.Conn
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewConn() (Conn, error) {
|
||
|
|
conn, err := net.Dial("unixpacket", "/var/run/devd.seqpacket.pipe")
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("devd dial error: %v", err)
|
||
|
|
}
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("dialing devd socket: %v", err)
|
||
|
|
}
|
||
|
|
return &devdConn{conn}, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *devdConn) Close() error {
|
||
|
|
return c.conn.Close()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *devdConn) Receive() (Message, error) {
|
||
|
|
for {
|
||
|
|
msg, err := bufio.NewReader(c.conn).ReadString('\n')
|
||
|
|
if err != nil {
|
||
|
|
return nil, fmt.Errorf("reading devd socket: %v", err)
|
||
|
|
}
|
||
|
|
// Only return messages related to the network subsystem.
|
||
|
|
if !strings.Contains(msg, "system=IFNET") {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
// TODO(]|[): this is where the devd-specific message would
|
||
|
|
// get converted into a "standard" event message and returned.
|
||
|
|
return nil, nil
|
||
|
|
}
|
||
|
|
}
|